Will be useful because: This galaxy is like an extension of the previous two photos, and again, illustrates the beauty of the universe without the help of religion or a creator. The universe creates itself and it’s pretty amazing.

Will be useful because: It’s a tree (a form of carbon based life that came from a star) in front of a sunset (a star that may one day explode and create other life elsewhere), juxtaposing the origin of life with an example of how it currently exists on Earth.